Diver. NATATORES. COLYMBUS. 413 
and beauty, and numbers of them are dressed and made into 
garments. That the Lesser Imber of Brwtcx is the young 
of the year of this species, I have no doubt, the original spe- 
cimen from which his figure was taken having been sent to 
me for inspection. 
Pate 77. Represents the Adult bird in about two-thirds 
of the natural size, taken from a very perfect specimen 
that was killed on the river Tay. 
Bill brownish-black, strait, strong, and tapering, with the 
upper mandible arched. Irides reddish-brown. Head 
and neck deep smoke-grey, darkest upon the forehead 
and region of the eyes. Throat and fore part of the 
neck black, glossed with rich auricula purple and green. 
Below the throat a narrow transverse band of black and 
white. From the ears, and on each side of the neck, ex- 
tends a broad band, rayed longitudinally with black and 
white, of the same raised appearance as in Colymb. 
glacialis. Upper plumage deep glossy black, the side 
feathers of the mantle, and the greater part of the sca- 
pulars, with large quadrangular white spots, forming 
upon the latter about fifteen transverse bars. Wing- 
coverts spotted with white. Sides and flanks black. 
The rest of the under plumage pure white. Legs deep 
clove-brown outwardly, paler within. Both sexes alike. 
The young of the year, or Brwicx’s Lesser Imber, is 
very similar to C. glacialis at the same age.—Head and 
back part of the neck grey. Throat and under parts 
white. Back deep grey, or clove-brown, margined with 
ash-grey. At the next moult, the head and nape of the 
neck become a purer grey, and some black feathers ap- 
pear on the under part of the neck. The feathers of 
the back also become darker, and a few black ones are 
seen interspersed. The two succeeding moults gra- 
dually develope the distinctive markings, and the plum- 
age is perfected at the conclusion of the third year. 
General 
descrip- 
tion. 
Adult 
bird. 
Young 
bird. 
